瓣膜成形环
Valvuloplasty ring
以上为机器翻译结果，长、整句建议使用 人工翻译 。
治疗组病人住院期间行瓣膜环缩术，对照组病人住院期间行血管内瓣膜成形术。
The patients in therapeutic group were performed with valve constriction . The patients in control group were performed with internal valvuloplasty .
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